Connecting rod



PATENT OFFICE.

'HEBRON' BERNARD LAYMAN', OF NEW YORK, N. Y., ASSIGNOR TO THE LAYMAN PRESSED ROD COMPANY, INC., OF NEW YORK, N. Y., A CORPORATION OLE NEW YORK.

. CONNECTING ROD.

Patented May 30, 1922.

A Application filed December 7, 1916. Serial No. 135,603. I

To all whom it may concern 1 Be it known that I, HEBRON BERNARD LAYMAN, a citizen of the United States, residing at New York, county and State of New York have invented certainnew and useful Improvements in Connecting Rods, of which the following is a full, clear, and exact description.

This invention relates to certain new and useful improvements in sheet metal. connecting rods, and is particularly applicable to rods of the types disclosed in my co-pending applications, SerialNos; 2 1 181, filed April 28th, 1915, and 444.38 filed Aug. 9th, 1915.

vAn object of the present invention is the cheapening of manufacture; another,the insuring of uniform weight; yet another, the incorporation of new structural advantages.

Further objects will appear hereafter in the specification and claims.

By way of example in the drawings Fig. 1 shows a side elevation of it connecting rod embodying the invention. One half of the rod is shown in central section to show the construction.

Fig. 2 is :a view at right angles to the view shown in Fig. 1 with one half of the'ro'd Y in central section.

Fig. 3'is a sectional-view, taken on line 3-3 of Fig. 1, and looking in the direction of the arrows.

Fig. 1 is a section, taken-on line 4:4: of Fig. 1 and looking in the direction of the arrow. i

In more detail,'the rod shownhere byway of example comprises two substantially similar parts of sheet metal 10, each part having-a shankportion 11, a smaller or piston end portion 12, a larger or crank end portion 13. The two parts are stamped from sheet metal, and are provided with .outwardly extending flanged portions 15 which extend substantially around the rod. These flanged portions of the parts are adapted to abut together, as shown in Flgs. 3 and 4:.

The piston and crank'ends are provided with inwardly extending cuff portions 16 and 17, whichalso abut against; each other at their ends when the two halves of the rod The cuffs 16 when turned cufi's 17 are adapted to receive a sleeve like bearing. member 21, similar to the sleeve bearing member 18 of the piston end of the rod. The sleeve lining 21 maybe pro- ..vided with a Babbitt metal bearing to cooperate with the crank pin. The sleeve bearing 21 receives collars 22 havingannular'flanges 23, which strengthen andradiate the heat at the crank end of-therod.

The crank end 18 is shapedas shown at 2 1to form bolt boss portions within which are inserted tubular bolt receivers 25, having at one end-a bolt-head seat 26, provided with a lip 27, to prevent the bolt from turning.

The shank portion .of the rod is oval at the center. Inside and abutting against the oval part is an oval reinforcing member 28,

avhich does not'extend entirely to-the inner edge of the shank, but is spaced therefrom,

as shown in Figl. The tubular rein-forcing vmember. is of such length that it abuts at its ends against the cuff .portions 16 and-17.

.This member 28 both sti-fli'ens the shank of the rod, and the junctions of the shank and .end portions. as a part of the stress. of the crank and piston'pins is transmitted directly to the tubular reinforcing member.

The reinforcing of the shank portion of the sheet metal connection rod has been shown but not claimed generically in my copending application Serial No. 86,361, filed March 24:, 1916. V 1

Within the tubular reinforcing member is an oil pipe 29 which is adapted :to lead oil from the crank pin to the piston pin bearing.

The oil pipe is carried bythe cuff portions 16 and 17 and the piston and crank bearing sleevesare drilled asshownat 30 "and 31 to permit the oil to flow out of and into the 168,514, filed May 14th, 1917.

As the completed rod ishollow, it has been found that there is a tendency for superfluous quantities of spelter to accumulate within the rod. This is undesirable since different rods will have different weight, and

the balance of the rods will be varying. I

accordingly provide an aperture 32 at the top of therod, and another aperture 33 at the lowermost part of the crank end portion, to permit the alloy to have free access to the interior of the rod, and at thesame time provide means for draining all excess alloy from the interior of the rod. The space 3 1,

1 within the upper end of the rod, space 35,

in the'shank portion, and space 36, at the bottom, provide a continuous passage so that any excess of alloy will drain out of the aperture 33 when the rods are being withdrawn from the molten metal.

' After the rods havebeen welded, they are then heat-treated. Thereafter the crank end of the rod is sawed transversely to form a cap or second part in the manner described in my previous application Serial No. 2 1,481.

It willbe understood that my invention is susceptible of various modifications, as will occur to those skilled in the art. What I claim as my invention is more particularly pointed out in the appended claims.

I claimi 1. In a connecting rod, in combination, a plurality of abutting sheet metal parts having provisions for the ingress and egress of moltenimetal to and from the space betweenthe abutting parts.

2. A; connecting rod composed of two substantially similar abutting parts having provisions for the ingress and egress of molten metal to and from the interior of the rod, substantially as described. a

3. A connecting rod composed of two substantially similar abutting parts, said parts each having a hollow shank portion and a smaller and larger end portion having apertures thereln to permlt the ingress of .molten metal to the interior of the rod and the draining ofexcess metal therefrom.

' i. Aconnecting rod composed of abutting sheet metal parts and having a hollow shank portion, means for reinforcing the said shank portion and provision for the ingress of plurality of substantially similar parts having a shank portionand end portions, inwardly extending cufl' portions at the end portions, and abutting flanged portions.

- 7 In a connecting rod, in combination, a plurality of substantially similar parts having a shank portion and end portions, said end portions having inwardly extending cuff portions, and sleeve bearing members therein to receive a piston pin and a crank pin.

8. In a connecting rod, in combination, a

plurality of substantially similar parts having a shank portion and end portions and integral abutting flange portions, said end portions having inwardly extending cuff portions, and sleeve bearing members in the cufi portions.

9. In a connectingrod, in combination, a plurality of substantially similar flanged abutting parts, having a smaller and larger end portions, and a shank'portion, said end portions having inwardly extending cufi portions, sleeve bearing members therein, and collar-like reinforcing members on said sleeve bearing portions. p

10. In a connecting rod, in combination, a plurality f substantially similar abutting sheet metal parts having a shank portion and larger and smaller end portions a reinforcing member 'therebetween in the region of the said shank portion, the end ortions having inwardly extending cuffs, an sleevelike members in the cuffs.

11. In a connecting rod, in combination, a

plurality of flanged abutting sheet metal inforcing member within the shank portion and abutting at its end against the aforesaid cuff portions to stiffen the shank portion and the junctions of the shank and end portions. j i

13. A. connecting rod composed of two substantially similar abutting parts having a hollow shank portion and abutting flange by immersion in molten metal; provision for portions, a tubular reinforcing memberwiththe ingress and egress of molten metal to in the shank portion united to said parts and and from the interior of the rod.- 1.0 cooperating with the united abutting flanges In testimony whereof I hereunto aflix my 5 to hold the two parts together. signature.

14. In a hollow built-up sheet metal c0n-- nesting rod adapted to be brazed or welded HEBRON BERNARD LAYMAN. 

